Jesse haven s



@uitrit tuts @nicht @fitte JESSE HAVENS, or AUBURN,l NEW YORK, A ssIcN'oE To'EiMsELEiAND GEORGE PALMER, 0E' THE siiMElPLAcE.`

Leners Paten No.V 77,879, 'dans May 12, 1868.

InirEorEMEET' In-srmrrfErreEnron.V

TO ALL WHOM I T MAY CONCERN': Y

Beit known that I, JESSE HAVENS, of Auburn, in [the county of Cayuga,l and State of New York, have invented a new and useful Machine for Pulling Stnmps; and I do hereby declare that thefollowing is a full, clear, and e'xact description 4thereof, reference being had to theaccompanying drawings, making part of this, specilication, in whclli Figure 1 is a side elevation o f lmy invention.

Figure 2 is a top viewof the same.

Like letters indicate corresponding parts in both figures.

The nature of this invention consists mainly in providing a sort of cone-shaft, composedrot` two cylindrical sections of unequal diameter, around whichthe ends ,of the lifting-chains are wound, after passing through the ordinary tackle-block; Vand asit is unwound from' the smaller section it is wound upon thelarger one, which produces the leverage onpower by reducing Vthe speed.

To enable others to make and use my invention, I will describe its construction and operation.

I provide a suitable supportinglarchor frame, F, which may be mountedupon truck-wheels, W,it` desired, for convenience in transporting. In the centre of 'this frame I mount the cone-shai`t D, ywhich consists of two sections, g and 7L, of unequal diameter, as shown in iig. 2. The ends of the lifting-chain C'alre attached to these sections, and wound up in opposite directions,'in order that when either is being unwound theother will be wound up. There is a large spun-wheel, "w, attached to one/end of theconc-shai't, to gear into the pinionp of the crank-shaft s. There may be a drum, B, hung'o'n this shaft, upon which a quantity ofrope, f-on a. chain may be used-.maybe wound." If desired, this drum B might `he attached to the coneshai`t, which,'of course, would considerably reduce the leverage or power of the machine. Thisl leverage may be increased or diminished by reducing or increasing the diiiercnce in thc diameter' ci' the two sections of the cone-shaft.

A crank may be applied to the shaft s at c, and the stump, or other weight or substancet he raised, may he raised by hand, but ordinarily there shonld'b-e a horse attached to the rope f. and as he travels olf the shafts are turned, and whatever may be attached to the hook-; is raised.

The lifting-chain C may be attachcd'to the'large and small sectionsA ol the cone-shaft, near the outer ends, un next to the frame F, in order that asthe chain is unwonnd from the small section it will be wound upon the large one, the coils of the rope or chain followin each other in the same direction along the shaft.'V

The supporting-frame may be made of any desired height, tc.

What I claim as my invention, and desire to secure by Letters Patent, isi The differential cylindrical shaftV l), tackle-block G, and the rope C, in combination with -the\frame, substantally in the manner and for the purposes herein shown anddcscribed JESSE HAVENS. Witnesses:

L. C. MUNN,

H. C. MUNN. 

